Power management and ACPI options --->
CPU Frequency scaling --->
Default CPUFreq governor (schedutil) --->
-*- 'performance' governor
<*> 'ondemand' cpufreq policy governor
-*- 'schedutil' cpufreq policy governor
*** CPU frequency scaling drivers ***
-*- Intel P state control
[*] AMD Processor P-State driver
(3) AMD Processor P-State default mode
<*> ACPI Processor P-States driver
<*> AMD frequency sensitivity feedback powersave bias
Currently amd-pstate has to be enabled explicitly
/etc/default/grub
GRUB_CMDLINE_LINUX_DEFAULT="initcall_blacklist=acpi_cpufreq_init amd_pstate.shared_mem=1 amd_pstate=active"
Regenerate grub.cfg:
# grub-mkconfig -o /boot/grub/grub.cfg
$ cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_driver
amd-pstate-epp
amd-pstate
$ cat /sys/devices/system/cpu/amd_pstate/status
active
$ cat /sys/devices/system/cpu/cpufreq/policy0/energy_performance_preference
balance_performance
$ cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_governors
performance powersave
$ cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
powersave